split example visualizaiton pipeline

tests/test_uv_geometry.py

@@ -0,0 +1,34 @@
+import numpy as np
+import pytest
+
+from orisys.unroll.geometry import (
+    resolve_uv_runtime_sizes,
+    scale_camera_geometry,
+    scaled_map_cache_path,
+)
+
+
+def test_scale_camera_geometry_halves_intrinsics_and_size():
+    k = np.array([[1000.0, 0.0, 640.0], [0.0, 1000.0, 360.0], [0.0, 0.0, 1.0]])
+    k_scaled, w, h = scale_camera_geometry(k, 1280, 720, 0.5)
+    assert w == 640
+    assert h == 360
+    assert k_scaled[0, 0] == pytest.approx(500.0)
+    assert k_scaled[1, 1] == pytest.approx(500.0)
+    assert k_scaled[0, 2] == pytest.approx(320.0)
+    assert k_scaled[1, 2] == pytest.approx(180.0)
+
+
+def test_resolve_uv_runtime_sizes_from_work4():
+    out_w, out_h, scale = resolve_uv_runtime_sizes(
+        {
+            "resolution_stitch": [280, 300],
+            "work4": [280, 300, 4, 0.4],
+        }
+    )
+    assert (out_w, out_h, scale) == (280, 300, 0.4)
+
+
+def test_scaled_map_cache_path_suffix():
+    assert scaled_map_cache_path("unroll_map_uv.npz", 0.4) == "unroll_map_uv_s0.4.npz"
+    assert scaled_map_cache_path("unroll_map_uv.npz", 1.0) == "unroll_map_uv.npz"